Egg Soufflé

Name: Egg Soufflé
Prep time: 25 min
Cook time: 45 min
Total time: 1 h 10 min
Cuisine: European, Mediterranean, French
Ingredients: 3 tablespoons butter, plus more for greasing; 3 tablespoons all-purpose flour, plus more for mugs; 2 cups whole milk; ½ teaspoon kosher salt; ½ teaspoon black pepper; ¼ teaspoon ground nutmeg; 4 eggs, separated; Juice of 1 lemon, divided in 2; 1 ½ cups gruyere cheese, grated; ¼ cup chives, chopped; Zest of 1 lemon; 4 cups arugula; 4 slices bacon, cooked and torn; 2 tablespoons extra virgin oil; ½ teaspoon kosher salt